CN201495784U - Vacuum grouting device - Google Patents
Vacuum grouting device Download PDFInfo
- Publication number
- CN201495784U CN201495784U CN 200920311599 CN200920311599U CN201495784U CN 201495784 U CN201495784 U CN 201495784U CN 200920311599 CN200920311599 CN 200920311599 CN 200920311599 U CN200920311599 U CN 200920311599U CN 201495784 U CN201495784 U CN 201495784U
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- CN
- China
- Prior art keywords
- vacuum
- grouting
- slurry
- machine
- prestressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model provides a vacuum grouting device for grouting of a prestressed pipe, in particular to a vacuum grouting device suitable for a prestressed pipe. The vacuum grouting device is characterized in that a vacuum machine is communicated with one end of a prestressed passage through a vacuum pipe, and a grouting machine is communicated with the other end of the prestressed passage through a grouting pipe; and a slurry discharging valve is connected between the prestressed passage and the vacuum machine, and a slurry feeding valve is connected between the prestressed passage and the grouting machine. The vacuum grouting device can improve the grouting efficiency and ensure the plumpness of the slurry at the both ends of the aperture better than the grouting effect of a piston.
Description
Technical field
The utility model provides a kind of vacuum grouting device of prestress pipe mud jacking, particularly is applicable to the vacuum grouting device of prestress pipe.
Background technology
At present, pre-stress construction has obtained using widely in bridge construction, but for prestress hole path pressure grouting, usually adopt piston pump that the duct is carried out in work progress, by the slurry bleeding hole path pressure grouting is full of, pressure will reach 0.5～0.7Mpa in work progress, the bleeding time will be held and be pressed 2 minutes, damage pressure drop equipment easily, the workman is bad to bleeding control in 2 minutes in work progress, causes two ends, duct slurry not full easily.
Summary of the invention
The utility model provides a kind of vacuum grouting device, and it can improve mud jacking efficient, and the plumpness that makes two ends, duct slurry is more effective than piston mud jacking.
The utility model technical scheme of being taked of dealing with problems is: design a kind of vacuum grouting device, it is characterized in that: be communicated with the vacuum machine at prestressed pore passage one end by vacuum tube, its other end is communicated with pneumatic mortar machine by madjack pipe; Between prestressed pore passage and vacuum machine, be connected with slurry-supplying valve, between prestressed pore passage and pneumatic mortar machine, be connected with slurry-inlet valve.
Characteristics of the present utility model are: the vacuum grouting device of this prestress pipe mud jacking, in the blind bore road, slurries are considered as a fluid column that flows, the normal pressure of advancing the slurry end with fluid column on the one hand endlessly pressure injection enter pipeline, apply a powerful thrust to fluid column; On the other hand, the vacuum pump of grout outlet end applies pulling force to fluid column.Do not need bleeding during the construction of its vacuum grouting, improved the safety and the durability of mud jacking efficient, post-tensioned concrete structure, the quality of mud jacking is better than piston mud jacking.Because in the duct and the positive/negative pressure between the mudjack poor, original empty G﹠W is eliminated in the duct; Simultaneously, mixing the bubble be clipped in the cement paste and unnecessary Free water is discharged from, improve the full and compactness of slurry in the duct greatly, little foam in the slurry and thin pulp rate under negative pressure of vacuum is introduced into negative-pressure container, after treating that thick slurry flows out, the denseness of starching in the duct can be consistent, and slurry density and intensity are guaranteed.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing
Fig. 1 is the example structure schematic diagram.
Among the figure: 1, vacuum machine; 2, vacuum tube; 3, slurry-supplying valve; 4, prestressed pore passage; 5, slurry-inlet valve; 6, madjack pipe; 7, pneumatic mortar machine.
Specific implementation method
Embodiment as shown in Figure 1, prestressed pore passage 4 one ends are communicated with vacuum machine 1 by vacuum tube 2, its other end is communicated with pneumatic mortar machine 7 by madjack pipe 6; Between prestressed pore passage 4 and vacuum machine 1, be connected with slurry-supplying valve 3 and control, between prestressed pore passage 4 and pneumatic mortar machine 7, be connected with slurry-inlet valve 5 and control.Adopt prestressed pore passage 4 one ends of 1 pair of sealing of vacuum machine to vacuumize during use earlier, reach about negative pressure-0.1Mpa, opening pneumatic mortar machine 7 then is pressed into the cement slurry that the stirs other end from the duct until being full of the whole piece duct, and the normal pressure that is not more than 0.7Mpa is carried out mud jacking to prestressed pore passage 4, be considered as the fluid column that flow with slurries this moment, the normal pressure of advancing the slurry end with fluid column on the one hand endlessly pressure injection enter pipeline, apply a powerful thrust to fluid column; On the other hand, the vacuum pump of grout outlet end applies pulling force to fluid column.It has improved mud jacking efficient, and the plumpness of two ends, duct slurry is more effective than piston mud jacking.Vacuum machine 1 and pneumatic mortar machine 7 belong to commercial product.
Claims (1)
1. vacuum grouting device, it is characterized in that: prestressed pore passage (4) one ends are communicated with vacuum machine (1) by vacuum tube (2), and its other end is communicated with pneumatic mortar machine (7) by madjack pipe (6); Between prestressed pore passage (4) and vacuum machine (1), be connected with slurry-supplying valve (3), between prestressed pore passage (4) and pneumatic mortar machine (7), be connected with slurry-inlet valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920311599 CN201495784U (en) | 2009-09-27 | 2009-09-27 | Vacuum grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920311599 CN201495784U (en) | 2009-09-27 | 2009-09-27 | Vacuum grouting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201495784U true CN201495784U (en) | 2010-06-02 |
Family
ID=42438992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920311599 Expired - Lifetime CN201495784U (en) | 2009-09-27 | 2009-09-27 | Vacuum grouting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201495784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505847A (en) * | 2011-09-29 | 2012-06-20 | 武汉劲野科技有限公司 | Mud jacking pipe device |
| CN103031809A (en) * | 2011-09-29 | 2013-04-10 | 李跃军 | Prestress hole channel grouting quality control method based on double parameters of flow and density |
-
2009
- 2009-09-27 CN CN 200920311599 patent/CN201495784U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505847A (en) * | 2011-09-29 | 2012-06-20 | 武汉劲野科技有限公司 | Mud jacking pipe device |
| CN103031809A (en) * | 2011-09-29 | 2013-04-10 | 李跃军 | Prestress hole channel grouting quality control method based on double parameters of flow and density |
| CN102505847B (en) * | 2011-09-29 | 2013-10-02 | 武汉劲野科技有限公司 | Mud jacking pipe device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA HIGHWAY MAINTENANCE ENGINEERING TECHNOLOGY C Effective date: 20120521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120521 Address after: 710065 Shaanxi Province, Xi'an City Road eight No. 262 Co-patentee after: CCCC Highway Maintenance Engineering Technology Co., Ltd. Patentee after: Zhongjiao Second Highway Engineering Bureau Co., Ltd. Address before: 710065 Overseas Engineering Department, building 13, traffic science and technology building, No. 176 south section of light road, Shaanxi, Xi'an Patentee before: Zhongjiao Second Highway Engineering Bureau Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100602 |
|
| CX01 | Expiry of patent term |